diff options
Diffstat (limited to 'src/thread/s390x/clone.s')
| -rw-r--r-- | src/thread/s390x/clone.s | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/src/thread/s390x/clone.s b/src/thread/s390x/clone.s index 577748ea..2125f20b 100644 --- a/src/thread/s390x/clone.s +++ b/src/thread/s390x/clone.s @@ -17,6 +17,9 @@ __clone: # if (!tid) syscall(SYS_exit, a(d)); # return tid; + # preserve call-saved register used as syscall arg + stg %r6, 48(%r15) + # create initial stack frame for new thread nill %r3, 0xfff8 aghi %r3, -160 @@ -35,6 +38,9 @@ __clone: lg %r6, 160(%r15) svc 120 + # restore call-saved register + lg %r6, 48(%r15) + # if error or if we're the parent, return ltgr %r2, %r2 bnzr %r14 |